15 RP-4 (rp = reverse polarity) gravity concentrating table weighs 60 lbs and requires about 8 to 14 gallons of water per minute. Will process up to 800 pounds or more per hour (sand size) of placer black sand magnetite or pulverized hard rock with little or no loss of gold
16 Stół Bartlesa-Mozley’a Inne separatory MINERALS CONCENTRATOR, BARTELS-MOZLEY, TYPE BML/FA, SERIAL NUMBER L106. DRIVEN BY 1/4 HP 1750 RPM MOTOR.SUSPENDED UNIT WITH ADJUSTABLE TILT CONTROLS. SAN DIMAS, CA
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